<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on"
             label-position="left">
      <h3 class="title">{{ $store.getters.config.siteTitle }}</h3>
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user"/>
        </span>
        <el-input v-model="loginForm.username" name="username" type="text" auto-complete="on" placeholder="username"/>
      </el-form-item>
      <el-form-item prop="password" style="margin-bottom: 10px;">
        <span class="svg-container">
          <svg-icon icon-class="password"/>
        </span>
        <el-input
          :type="pwdType"
          v-model="loginForm.password"
          name="password"
          auto-complete="on"
          placeholder="password"
          @keyup.enter.native="handleLogin"/>
        <span class="show-pwd" @click="showPwd">
          <svg-icon icon-class="eye"/>
        </span>
      </el-form-item>
      <div class="bottom-text" style="margin-bottom: 20px;">
        <span/>
        <span @click="showResetPwdDialog('forget')">忘记密码</span>
      </div>
      <el-form-item>
        <el-button :loading="loading" type="primary" style="width:100%;" @click.native.prevent="handleLogin">
          <span>登 录</span>
        </el-button>
      </el-form-item>
    </el-form>
    <Footer class="footer"/>

    <!--验证码弹窗-->
    <el-dialog :visible.sync="resetPwdDialogVisible" :modal-append-to-body="false" :title="resetPwdForm['title']" center width="450px" @close="auth_time='';resetForm('resetPwdForm');">
      <el-form ref="resetPwdForm" v-model="resetPwdForm" label-width="120px">
        <el-form-item label="手机号码">
          <el-input v-model="resetPwdForm['mobile']" style="width: 225px;"/>
        </el-form-item>
        <el-form-item label="验证码">
          <div style="width: 225px;display: flex;">
            <el-input v-model="resetPwdForm['code']" style="width: 125px;flex: 1;"/>
            <el-button v-if="auth_time===''" @click="getAuthCode">获取验证码</el-button>
            <el-button v-else-if="auth_time>0"><span class="auth_text_blue">{{ auth_time }} </span> s</el-button>
            <el-button v-else-if="auth_time===0" @click="getAuthCode">重新获取</el-button>
          </div>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button type="primary" @click="checkVerification">确 定</el-button>
      </span>
    </el-dialog>
    <!--密码弹窗-->
    <el-dialog
      :visible.sync="passwordDialogVisible"
      :modal-append-to-body="false"
      :show-close="false"
      :close-on-press-escape="false"
      :close-on-click-modal="false"
      center
      title="修改密码"
      width="450px"
      @close="resetForm('passwordForm')">
      <el-form ref="passwordForm" v-model="passwordForm" label-width="140px">
        <el-form-item label="请输入密码">
          <el-input v-model="passwordForm['password']" type="password" style="width: 225px;"/>
        </el-form-item>
        <el-form-item label="再次输入密码">
          <el-input v-model="passwordForm['password2']" type="password" style="width: 225px;"/>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button type="primary" @click="doChangePassword">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  import {Footer} from '../layout/components';

  export default {
    name: 'Login',
    components: { Footer },
    data() {
      const validatePass = (rule, value, callback) => {
        if (value.length < 5) {
          callback(new Error('密码不能小于5位'))
        } else {
          callback()
        }
      };
      return {
        loginForm: {
          username: '',
          password: ''
        },
        loginRules: {
          username: [{required: true, trigger: 'blur', message: '姓名不为空'}],
          password: [{required: true, trigger: 'blur', validator: validatePass}]
        },
        loading: false,
        pwdType: 'password',
        redirect: undefined,
        // 注册弹窗
        mobile: '',
        resetPwdDialogVisible: false,
        resetPwdForm: {
          title: '',
          mobile: '',
          code: ''
        },
        sendAuthCode: true,
        auth_time: '',
        // 找回密码弹窗
        passwordDialogVisible: false,
        passwordForm: {
          password: '',
          password2: ''
        }
      }
    },
    watch: {
      $route: {
        handler: function (route) {
          this.redirect = route.query && route.query.redirect
        },
        immediate: true
      }
    },
    mounted(){
      this.initSiteTitle();
    },
    methods: {
      initSiteTitle() {
        (async () => {
          const result = await this.$service.adminSystemGetSystemConfigNoToken();
          if (result.code === 0) {
            window.document.title = result.data.seoTitle
            this.$store.dispatch('SetSiteInfo', result.data)
          }
        })();
      },

      showPwd() {
        if (this.pwdType === 'password') {
          this.pwdType = ''
        } else {
          this.pwdType = 'password'
        }
      },
      // 登陆
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            this.loading = true;
            (async () => {
              const result = await this.$service.adminRoleLogin(this.loginForm);
              this.loading = false;
              if (result.code === 0) {
                this.$router.push({path: this.$route.query['redirect'] || '/'});
              } else {
                this.$message.error(result.msg);
              }
            })();
          } else {
            console.log('error submit!!')
            return false
          }
        })
      },
      // 倒计时
      getAuthCode() {
        if (this.resetPwdForm['mobile']) {
          (async () => {
            const data = {
              type: this.resetPwdForm['title'] === '找回密码' ? 2 : 1,
              mobile: this.resetPwdForm['mobile']
            }
            const result = await this.$service.adminSendSmsCode(data);
            this.loading = false;
            if (result.code === 0) {
              this.$message.success('短信验证码发送成功')
              this.auth_time = 60
              const auth_timer = setInterval(() => {
                this.auth_time--
                if (this.auth_time <= 0) {
                  clearInterval(auth_timer)
                }
              }, 1000)
            } else {
              this.$message.error(result.msg);
            }
          })();
        } else {
          this.$message.error('请输入手机号码')
        }
      },

      // 验证验证码
      checkVerification() {
        if (this.resetPwdForm['code']) {
          this.mobile = this.resetPwdForm['mobile']
          if (this.resetPwdForm['title'] === '找回密码') {
            this.sms_type = 2
          } else {
            this.sms_type = 1
          }
          (async () => {
            const data = {
              code: this.resetPwdForm['code'],
              mobile: this.resetPwdForm['mobile']
            }
            const result = await this.$service.adminCheckSmsCode(data);
            this.loading = false;
            if (result.code === 0) {
              this.showPasswordDialog()
            } else {
              this.$message.error(result.msg);
            }
          })();
        } else {
          this.$message.error('请输入短信验证码')
        }
      },
      // 显示找回密码验证码弹窗
      showResetPwdDialog(type) {
        this.resetPwdDialogVisible = true
        if (type === 'forget') {
          this.resetPwdForm['title'] = '找回密码'
        }
      },
      // 显示修改密码弹窗
      showPasswordDialog() {
        this.resetPwdDialogVisible = false
        this.passwordDialogVisible = true
      },

      doChangePassword() {
        if (!this.passwordForm.password) {
          this.$message.error('请输入密码')
          return
        }
        if (!this.passwordForm.password2) {
          this.$message.error('请再次输入密码')
          return
        }
        if (this.passwordForm.password === this.passwordForm.password2) {
          this.passwordDialogVisible = false;
          // 设置密码
          (async () => {
            const data = {
              password: this.passwordForm['password'],
              mobile: this.mobile
            }
            const result = await this.$service.adminChangePassword(data);
            this.loading = false;
            if (result.code === 0) {
              this.$message.success(this.sms_type === 1 ? '注册成功' : '修改成功')
              this.passwordDialogVisible = false
            } else {
              this.$message.error(result.msg);
            }
          })();
        } else {
          this.$message.error('两次输入的密码不一致')
        }
      },
      resetForm(formName) {
        this.$refs[formName].resetFields()
        this[formName] = {}
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss">
  $bg: #2d3a4b;
  $light_gray: #eee;

  /* reset element-ui css */
  .login-container {
    .login-form{
      .el-input {
        display: inline-block;
        height: 47px;
        width: 85%;
        input {
          background: transparent;
          border: 0;
          -webkit-appearance: none;
          border-radius: 0;
          padding: 12px 5px 12px 15px;
          color: $light_gray;
          height: 47px;
          &:-webkit-autofill {
            -webkit-box-shadow: 0 0 0 1000px $bg inset !important;
            -webkit-text-fill-color: #fff !important;
          }
        }
      }
      .el-form-item {
        border: 1px solid rgba(255, 255, 255, 0.1);
        background: rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        color: #454545;
      }
    }
  }

</style>

<style rel="stylesheet/scss" lang="scss" scoped>
  $bg: #2d3a4b;
  $dark_gray: #889aa4;
  $light_gray: #eee;
  .login-container {
    position: fixed;
    height: 100%;
    width: 100%;
    background-color: $bg;
    .login-form {
      position: absolute;
      left: 0;
      right: 0;
      width: 520px;
      max-width: 100%;
      padding: 35px 35px 15px 35px;
      margin: 120px auto;
    }
    .tips {
      font-size: 14px;
      color: #fff;
      margin-bottom: 10px;
      span {
        &:first-of-type {
          margin-right: 16px;
        }
      }
    }
    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
    }
    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0 auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
      user-select: none;
    }
    .bottom-text {
      span:first-child {
        color: #fff;
        font-size: 14px;
        text-align: right;
        cursor: pointer;
        margin-right: 16px;

        &:hover {
          text-decoration: underline;
        }
      }

      span:last-child {
        color: #fff;
        font-size: 14px;
        text-align: right;
        cursor: pointer;
        margin-right: 16px;
        float: right;

        &:hover {
          text-decoration: underline;
        }
      }
    }
  }
  .footer{
    position: fixed;
    bottom: 0;
    color: white;
  }
</style>
